#555EC9#555EC9

#555EC9 is a mid, vivid blue. Relative luminance 0.142; OKLCH L 53.2% C 0.164 H 275.7°. Best body text is #FFFFFF at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#555EC9
RGB	rgb(85, 94, 201)
HSL	hsl(235, 52%, 56%)
HSV	hsv(235, 58%, 79%)
CMYK	cmyk(57.7%, 53.2%, 0%, 21.2%)
CIE-LAB	lab(44.45, 28.09, -56.98)
CIE-LCH	lch(44.45, 63.53, 296.25°)
OKLab	oklab(53.21% 0.0163 -0.1632)
OKLCH	oklch(53.21% 0.164 275.7)
XYZ	xyz(18.2882, 14.1524, 57.0150)
Luminance	0.1415 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555EC9 #C9C055

analogous

#5598C9 #555EC9 #8655C9

triadic

#555EC9 #C9555E #5EC955

tetradic

#555EC9 #C95598 #C9C055 #55C986

square

#555EC9 #C95598 #C9C055 #55C986

split-complementary

#555EC9 #C98655 #98C955

monochromatic

#272E7C #363FAB #555EC9 #838AD8 #B2B6E7

Accessibility & contrast

On white

5.48

#555EC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.83

#555EC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555EC9

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555EC9	#FFFFFF	#000000	##FFFFFF
##555EC9	1.00	5.48	3.83	5.48
#FFFFFF	5.48	1.00	21.00	1.00
#000000	3.83	21.00	1.00	21.00
##FFFFFF	5.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D6ECD

Deuteranopia (green-blind)

#0064C7

Tritanopia (blue-blind)

#03778A

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #555ec9;
/* rgb */ color: rgb(85, 94, 201);
/* oklch */ color: oklch(53.2% 0.164 275.7);

Tailwind

colors: {
  custom: {
    50: '#8f8bda',
    500: '#555ec9',
    950: '#000000',
  },
}

SCSS

$custom: #555ec9;
$custom-light: #8f8bda;
$custom-dark: #000000;

JSON

{
  "hex": "#555ec9",
  "rgb": {
    "r": 85,
    "g": 94,
    "b": 201
  },
  "hsl": {
    "h": 235.345,
    "s": 51.786,
    "l": 56.078
  },
  "oklch": {
    "l": 0.53211,
    "c": 0.16399,
    "h": 275.7
  },
  "luminance": 0.14154
}

Semantic roles & 50–950 ramp

primary

#555EC9

secondary

#D5D1A5

accent

#D04DDB

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #555EC9

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →